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Gregius Optimizer

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Gregius Optimizer

by Gregius

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Description

Gregius Optimizer gives content editors and site administrators a unified control panel for search, social, and AI metadata — without leaving the block editor.

Panels

  • Sitemap — Toggle post types, taxonomies, and authors in your XML sitemap. Exclude individual posts from search engines with a single click.
  • Robots.txt — Edit your robots.txt file from a modal textarea with dynamic row sizing. Reset to WordPress defaults at any time.
  • Schema — Full schema.org type map with 176 subtypes across 9 categories (Article, WebPage, CreativeWork, Event, Organization, Person, Place, Product, Review). Assign global defaults per post type, override per post, and preview JSON-LD with clipboard copy. Organization JSON-LD includes sameAs and logo.
  • Social Cards — Per-platform title, description, and image overrides for Google Search Snippets, Open Graph (Facebook, LinkedIn), and Twitter/X Cards. Inline live previews with character counters (Google 60/160, OG 55/65, Twitter 70/200). Global fallback image with kebab menu.
  • LLMs — Auto-generate /llms.txt from site content for AI agent discoverability. Custom context editing with live preview. Per-post include toggle with custom descriptions.

All panels are accessible from PluginDocumentSettingPanel in the Gutenberg sidebar, listed in order: Sitemap Robots Schema Social Cards LLMs.

Key Features

  • Meta description and canonical URL output via wp_head
  • pre_get_document_title filter for Google-specific title override
  • Open Graph (og:*) and Twitter Card meta tags with per-platform fallback chains
  • gg_optimizer_og image size (1200×630, cropped) registered on after_setup_theme
  • JSON-LD structured data: Organization (configurable subtype), WebSite, BreadcrumbList, article/page (176 subtypes)
  • @graph wrapper for multiple JSON-LD nodes
  • Custom DB table (gg_optimizer_settings) shared across all features
  • REST endpoints for all settings: sitemap, robots, schema, social cards preview, llms override and preview
  • Filter-based architecture — every output group can be disabled via filters
  • All meta fields support revisions

Contributors & Developers

Gregius Optimizer is open source software. The following people have contributed to this plugin.

  • Hector Jarquin — Lead developer and maintainer
  • Gregius — Product owner and sponsor

Visit the contributor profiles on WordPress.org:
* https://profiles.wordpress.org/hectorjarquin/
* https://profiles.wordpress.org/gregiusteam/

Repository

Source code and build instructions:
https://github.com/gregius/gregius-optimizer

This plugin uses npm and @wordpress/scripts for asset compilation. Source JavaScript lives in assets/src/ and compiles to assets/build/. All PHP source is human-readable.

External Services

Gregius Optimizer does not send data to any external service. The following URLs are referenced as documentation or standards only:

  • Google Robots — https://developers.google.com/search/docs/crawling-indexing/robots/intro — robots.txt and meta robots documentation
  • Schema.org — https://schema.org/ — structured data vocabulary reference
  • Google Structured Data Gallery — https://developers.google.com/search/docs/appearance/structured-data/search-gallery — structured data feature reference
  • Open Graph Protocol — https://ogp.me/ — Open Graph meta tag specification
  • Twitter/X Cards — https://docs.x.com/overview — Twitter Card meta tag documentation
  • llms.txt — https://llmstxt.org/ — llms.txt proposal specification
  1. Upload the gregius-optimizer folder to /wp-content/plugins/
  2. Activate through the Plugins screen in WordPress
  3. Open any post or page in the block editor — the optimizer panels appear in the right sidebar
  1. Sitemap settings via the editor

    Sitemap settings via the editor

  2. Robots settings via the editor

    Robots settings via the editor

  3. Schema settings via the editor

    Schema settings via the editor

  4. Social cards settings via the editor

    Social cards settings via the editor

  5. LLMs settings via the editor

    LLMs settings via the editor

Does this plugin replace Yoast SEO or Rank Math?

Gregius Optimizer focuses on the Gutenberg-native editing experience for metadata that those plugins often bury in separate metaboxes. It can complement or replace them depending on your workflow.

Which post types are supported?

All public post types that support custom-fields. Meta fields, schema subtype, and LLMs toggle register on every public post type automatically.

Can I disable specific output groups?

Yes. Each output group (meta description, canonical, Open Graph, Twitter Cards, LLMs) has a corresponding gg_optimizer_meta_output_* or gg_optimizer_llms_enabled filter.

Does the plugin add a database table?

Yes. Settings for sitemap, robots.txt, schema defaults, and LLMs context are stored in {$prefix}gg_optimizer_settings. The table is created on activation and removed on uninstall.

Is there a translation file?

The text domain is gregius-optimizer. A .pot file is not bundled; translations are handled via the standard WordPress translation system.

1.0.0

  • Initial release
  • Sitemap panel with per-post-type/taxonomy/author toggles and noindex per-post
  • Robots.txt modal editor with reset to defaults
  • Schema panel with 176 subtypes across 9 categories, Organization type, per-post override, JSON-LD preview
  • Social Cards panel with Google Search Snippet, Open Graph, Twitter/X Cards, Global Image, character counters
  • LLMs panel with auto-generated llms.txt, custom context, per-post include toggle, live preview
  • Meta description and canonical URL output
  • Open Graph and Twitter Card meta tags with per-platform fallback chains
  • JSON-LD structured data: Organization, WebSite, BreadcrumbList, article/page
  • 11 custom meta fields with revision support
    • REST API endpoints for all settings and previews
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